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Phone Samsung SCH-A770 HTC Rhyme HTC Droid Eris Sony Ericsson W810 Samsung Knack U310
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? 3.7" diag.
5 : 3
3.2" diag.
5 : 3
? 2.2" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 1,100 mAh 1,600 mAh 1,300 mAh ? 1,000 mAh
Processor ? 1 GHz Qualcomm Snapdragon S2 MSM8655 528 MHz MSM7600 ? ?
RAM ? 768 MB ? ? ?
Storage ? raw hardware 4 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel 5 megapixel 5 megapixel 2 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? 720p HD CIF (352 x 288) ? -
Front Camera - Yes - - -
Weight ? 4.77 oz
(135g)
4.43 oz
(126g)
3.49 oz
(99g)
3.63 oz
(103g)
Dimensions ? 4.6" x 2.4" x 0.4"
(117 x 61 x 10.2 mm)
4.45" x 2.19" x 0.52"
(113 x 55 x 13.2 mm)
3.94" x 1.81" x 0.77"
(100 x 46 x 19.6 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
Form Factor Clamshell Slab Slab Slab Clamshell
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology 1xRTT EVDO rA EVDO rA EDGE -
Features 
Flashlight - - - Yes -
GPS / Location Yes n/a n/a - Yes
Accessibility
Adjustable Text Size - n/a n/a - Yes
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - - - Yes
Ringer Profiles Yes - - Yes -
Connectivity
Bluetooth - Yes Yes Yes -
Infrared (IR) - - - Yes -
Mobile Hotspot - n/a n/a - -
USB - Yes
Micro-USB
Yes
Mini-USB
Yes -
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
802.11 b,g
- -
Contacts
Picture ID Yes n/a n/a Yes -
Ringer ID Yes n/a n/a Yes -
Voice Dialing Yes n/a n/a Yes Yes
Customization
Custom Graphics Yes n/a n/a Yes -
Custom Ringtones Yes n/a n/a Yes -
Real-Music Ringers - n/a n/a Yes -
Data & Network
Data Tethering Yes n/a n/a Yes -
External Antenna Jack - n/a n/a Yes -
WAP / Web Browser Yes n/a n/a Yes -
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes Yes - -
Memory
Memory Card Slot Yes Yes Yes Yes -
Messaging
Email Client - n/a n/a Yes -
EMS / Picture Messaging - n/a n/a Yes Yes
Instant Messaging - n/a n/a Yes -
MMS Yes n/a n/a Yes -
Text Messaging Templates Yes n/a n/a Yes -
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a Yes -
Photo & Video
DLNA - Yes - - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List Yes n/a n/a Yes -
Voice Memo Yes n/a n/a Yes -
Software
BREW Yes n/a n/a - -
Games Yes n/a n/a Yes -
Java (J2ME) - n/a n/a Yes -
Voice
Call Screening Yes - - - -
Headset Jack (2.5 mm) Yes n/a n/a - Yes
Speaker Phone - Yes Yes Yes Yes
  Samsung SCH-A770 HTC Rhyme HTC Droid Eris Sony Ericsson W810 Samsung Knack U310
  X > < X > < X > < X > < X

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Phone Samsung SCH-A770 HTC Rhyme HTC Droid Eris Sony Ericsson W810 Samsung Knack U310

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